He has expended an estimated half-a-million calories. One constant source of fuel has been bananas, with Edgley eating more than 500 on the adventure.

His positive disposition has impressed many, even when swimming through the sewage-like waters of the Humber.

Edgley is already in the Guinness Book of World Records. In April 2016, he completed a rope climb the equivalent height of Mount Everest in 19 hours, two months after doing a marathon while pulling a car.

But he has also experienced disappointment. In 2017, he attempted to swim the 24.8 miles (40km) between Martinique and St Lucia while pulling a 100lb (45.3kg) tree trunk.

Lewis Pugh swam the length of the English Channel in July and August (Gareth Fuller/PA)

Earlier this year, swimmer and environmental campaigner Lewis Pugh became the first person to swim the length of the English Channel, under traditional Channel swimming rules.

Wearing just Speedo trunks, a swimming hat and goggles, the UN Patron of the Oceans was highlighting ocean pollution.

In 2013, Sean Conway swam from Land’s End to John O’Groats in 135 days.

Edgley took 62 for that section of his swim – and then swam the east coast too.